<template>
  <view class="uni-navbar" :class="{ 'uni-dark': dark }">
    <view
      :class="{
        'uni-navbar--fixed': fixed,
        'uni-navbar--shadow': shadow,
        'uni-navbar--border': border,
      }"
      class="uni-navbar__content"
    >
      <view class="fixed-bg" :class="[opacity ? '' : opacityBgUi]"></view>
      <su-status-bar v-if="statusBar" />
      <view
        :style="{
          color: themeColor,
          height: navbarHeight,
          background: backgroundColor,
        }"
        class="uni-navbar__header"
      >
        <view
          class="uni-navbar__header-btns uni-navbar__header-btns-left"
          :style="{ width: leftIconWidth }"
          v-if="showHeaderButton"
        >
          <slot name="left">
            <view class="uni-navbar__content_view" v-if="leftIcon.length > 0">
              <view class="icon-box ss-flex">
                <view
                  class="icon-button icon-button-left ss-flex ss-row-center"
                  @tap="onClickLeft"
                >
                  <!-- SAIL-0001 购物车tarbar页面变成返回按钮 -->
                  <text class="sicon-back" v-if="hasHistory" />
                  <text class="sicon-home" v-else />
                </view>
                <view class="line"></view>
                <view
                  class="icon-button icon-button-right ss-flex ss-row-center"
                  @tap="showMenuTools"
                >
                  <text class="sicon-more" />
                </view>
              </view>
            </view>
            <view
              :class="{ 'uni-navbar-btn-icon-left': !leftIcon.length > 0 }"
              class="uni-navbar-btn-text"
              v-if="
                titleAlign === 'left' &&
                title.length &&
                sheep.$platform.name !== 'WechatOfficialAccount'
              "
            >
              <text :style="{ color: themeColor, fontSize: '18px' }">{{
                title
              }}</text>
            </view>
          </slot>
        </view>
        <!-- SAIL 搜索框去除 -->
        <!-- <view v-if="tools === 'search'" class="ss-flex-1">
          <slot name="center">
            <uni-search-bar
              class="ss-flex-1 search-box"
              :radius="20"
              placeholder="请输入关键词"
              cancelButton="none"
              v-model="searchModel"
              @confirm="onSearch"
            />
          </slot>
        </view> -->
        <view v-else class="uni-navbar__header-container" @tap="onClickTitle">
          <slot name="center">
            <view
              v-if="
                tools === 'title' && titleAlign === 'center' && title.length
              "
              class="uni-navbar__header-container-inner"
            >
              <text
                :style="{ color: themeColor, fontSize: '36rpx' }"
                class="ss-line-1"
                >{{ title }}</text
              >
            </view>
          </slot>
        </view>
      </view>
    </view>
    <view class="uni-navbar__placeholder" v-if="placeholder">
      <su-status-bar v-if="statusBar" />
      <view
        class="uni-navbar__placeholder-view"
        :style="{ height: navbarHeight }"
      />
    </view>
    <!-- 头部问题 -->
    <!-- #ifdef MP -->
    <!-- <view :style="[capsuleStyle]"></view> -->
    <!-- #endif -->
  </view>
</template>

<script setup>
import sheep from "@/sheep";
import { onLoad } from "@dcloudio/uni-app";
import { showMenuTools, closeMenuTools } from "@/sheep/hooks/useModal";
import { computed, ref } from "vue";

/**
 * NavBar 自定义导航栏
 * @description 导航栏组件，主要用于头部导航
 * @property {Boolean} dark 开启黑暗模式
 * @property {String} title 标题文字
 * @property {String} rightText 右侧按钮文本
 * @property {String} leftIcon 左侧按钮图标
 * @property {String} rightIcon 右侧按钮图标
 * @property {String} color 图标和文字颜色
 * @property {String} backgroundColor 导航栏背景颜色
 * @property {Boolean} fixed = [true|false] 是否固定顶部
 * @property {Boolean} statusBar = [true|false] 是否包含状态栏
 * @property {Boolean} shadow = [true|false] 导航栏下是否有阴影
 * @event {Function} clickLeft 左侧按钮点击时触发
 * @event {Function} clickRight 右侧按钮点击时触发
 * @event {Function} clickTitle 中间标题点击时触发
 */

const getVal = (val) => (typeof val === "number" ? val + "px" : val);

const emits = defineEmits(["clickLeft", "clickRight", "clickTitle", "search"]);
const props = defineProps({
  dark: {
    type: Boolean,
    default: false,
  },
  modelValue: {
    type: String,
    default: "",
  },
  title: {
    type: String,
    default: "",
  },
  titleAlign: {
    type: String,
    default: "center", // left | center
  },
  rightText: {
    type: String,
    default: "",
  },
  leftIcon: {
    type: String,
    default: "left",
  },
  rightIcon: {
    type: String,
    default: "",
  },
  fixed: {
    type: [Boolean, String],
    default: true,
  },
  placeholder: {
    type: [Boolean, String],
    default: true,
  },
  color: {
    type: String,
    default: "",
  },
  backgroundColor: {
    type: String,
    default: "",
  },
  opacity: {
    type: [Boolean, String],
    default: false,
  },
  opacityBgUi: {
    type: String,
    default: "bg-white",
  },
  statusBar: {
    type: [Boolean, String],
    default: false,
  },
  shadow: {
    type: [Boolean, String],
    default: false,
  },
  border: {
    type: [Boolean, String],
    default: false,
  },
  height: {
    type: [Number, String],
    default: 44,
  },
  leftWidth: {
    type: [Number, String],
    default: 80,
  },
  rightWidth: {
    type: [Number, String],
    default: 0,
  },
  tools: {
    type: String,
    default: "title",
  },
  defaultSearch: {
    type: String,
    default: "",
  },
  showHeaderButton: {
    type: Boolean,
    default: true,
  },
});

const capsuleStyle = computed(() => {
  return {
    width: sheep.$platform.capsule.width + "px",
    height: sheep.$platform.capsule.height + "px",
    margin:
      "0 " +
      (sheep.$platform.device.windowWidth - sheep.$platform.capsule.right) +
      "px",
  };
});

const searchModel = computed(() => {
  return props.defaultSearch;
});

const themeBgColor = computed(() => {
  if (props.dark) {
    // 默认值
    if (props.backgroundColor) {
      return props.backgroundColor;
    } else {
      return props.dark ? "#333" : "#FFF";
    }
  }
  return props.backgroundColor || "#FFF";
});
const themeColor = computed(() => {
  if (props.dark) {
    // 默认值
    if (props.color) {
      return props.color;
    } else {
      return props.dark ? "#fff" : "#333";
    }
  }
  return props.color || "#333";
});
const navbarHeight = computed(() => {
  return getVal(props.height);
});
const leftIconWidth = computed(() => {
  return getVal(props.leftWidth);
});
const rightIconWidth = computed(() => {
  return getVal(props.rightWidth);
});

function onSearch(e) {
  emits("search", e.value);
}

const routerStore = sheep.$store("router");
// const hasHistory = ref(sheep.$router.hasHistory());
const hasHistory = sheep.$router.hasHistory();

onLoad(() => {
  if (uni.report && props.title !== "") {
    uni.report("title", props.title);
  }

  // SAIL-0001 解决购物车页面图标
  // hasHistory.value = routerStore.history.length > 1 ? true : false;
  // console.log("hasHistory", routerStore.history);
});
// SAIL-0001 解决购物车-商品详情
// function onClickLeft() {
//   const currentRoute = sheep.$router.getCurrentRoute(); // 获取当前路由信息
//   const isCartPage = currentRoute.path === "/pages/index/cart"; // 判断是否是购物车页面

//   console.log(
//     "返回",
//     sheep.$store("router").history[sheep.$store("router").history.length - 1]
//   );
//   if (isCartPage && routerStore.history.length > 0) {
//     // 获取倒数第二条记录（上一条记录）
//     const lastRoute = routerStore.history[routerStore.history.length - 2];

//     if (lastRoute) {
//       const { path, params } = lastRoute; // 直接获取路径和参数
//       // SAIL-0001 reLaunch 跳转调用
//       sheep.$router.go(path, params, { reLaunch: true }); // 跳转到上一条记录
//       return;
//     }
//   }
//   if (hasHistory.value) {
//     sheep.$router.back();
//   } else {
//     sheep.$router.go("/pages/index/index");
//   }
//   emits("clickLeft");
// }

function onClickLeft() {
    if (hasHistory) {
      sheep.$router.back();
    } else {
      sheep.$router.go('/pages/index/index');
    }
  }
function onClickRight() {
  showMenuTools();
}
function onClickTitle() {
  emits("clickTitle");
}
</script>

<style lang="scss" scoped>
.bg-main {
  background: linear-gradient(
    90deg,
    var(--ui-BG-Main),
    var(--ui-BG-Main-gradient)
  ) !important;
  color: #fff !important;
}
.icon-box {
  background: #ffffff;
  box-shadow: 0px 0px 4rpx rgba(51, 51, 51, 0.08),
    0px 4rpx 6rpx 2rpx rgba(102, 102, 102, 0.12);
  border-radius: 30rpx;
  width: 134rpx;
  height: 56rpx;
  margin-left: 8rpx;
  .line {
    width: 2rpx;
    height: 24rpx;
    background: #e5e5e7;
  }
  .sicon-back {
    font-size: 32rpx;
    color: #000;
  }
  .sicon-home {
    font-size: 32rpx;
    color: #000;
  }
  .sicon-more {
    font-size: 32rpx;
    color: #000;
  }
  .icon-button {
    width: 67rpx;
    height: 56rpx;
    &-left:hover {
      background: rgba(0, 0, 0, 0.16);
      border-radius: 30rpx 0px 0px 30rpx;
    }
    &-right:hover {
      background: rgba(0, 0, 0, 0.16);
      border-radius: 0px 30rpx 30rpx 0px;
    }
  }
}

$nav-height: 44px;

.fixed-bg {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  z-index: 1;
  pointer-events: none;
}

.uni-nav-bar-text {
  /* #ifdef APP-PLUS */
  font-size: 34rpx;
  /* #endif */
  /* #ifndef APP-PLUS */
  font-size: 14px;
  /* #endif */
}

.uni-nav-bar-right-text {
  font-size: 12px;
}

.uni-navbar__content {
  position: relative;
  // background-color: #fff;
  // box-sizing: border-box;
  background-color: transparent;
}

.uni-navbar__content_view {
  // box-sizing: border-box;
}

.uni-navbar-btn-text {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  line-height: 18px;
}

.uni-navbar__header {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  padding: 0 10px;
  flex-direction: row;
  justify-content: space-between;
  height: $nav-height;
  font-size: 12px;
  position: relative;
  z-index: 2;
}

.uni-navbar__header-btns {
  /* #ifndef APP-NVUE */
  overflow: hidden;
  display: flex;
  /* #endif */
  flex-wrap: nowrap;
  flex-direction: row;
  // min-width: 120rpx;
  min-width: 40rpx;
  // padding: 0 6px;
  justify-content: center;
  align-items: center;
  /* #ifdef H5 */
  cursor: pointer;
  /* #endif */
}

.uni-navbar__header-btns-left {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  width: 120rpx;
  justify-content: flex-start;
  align-items: center;
}

.uni-navbar__header-btns-right {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex-direction: row;
  // width: 150rpx;
  // padding-right: 30rpx;
  justify-content: flex-end;
  align-items: center;
}
.uni-navbar__header-container {
  /* #ifndef APP-NVUE */
  // display: flex;
  /* #endif */
  // flex: 1;
  // padding: 0 10px;
  // overflow: hidden;
  position: absolute;
  left: 50%;
  transform: translateX(-50%) translateY(-50%);
  top: 50%;
}

.uni-navbar__header-container-inner {
  /* #ifndef APP-NVUE */
  display: flex;
  /* #endif */
  flex: 1;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  overflow: hidden;
  // box-sizing: border-box;
}

.uni-navbar__placeholder-view {
  height: $nav-height;
}

.uni-navbar--fixed {
  position: fixed;
  z-index: 998;
  /* #ifdef H5 */
  left: var(--window-left);
  right: var(--window-right);
  /* #endif */
  /* #ifndef H5 */
  left: 0;
  right: 0;
  /* #endif */
}

.uni-navbar--shadow {
  box-shadow: 0 1px 6px #ccc;
}

.uni-navbar--border {
  border-bottom-width: 1rpx;
  border-bottom-style: solid;
  border-bottom-color: #eee;
}

.uni-ellipsis-1 {
  overflow: hidden;
  /* #ifndef APP-NVUE */
  white-space: nowrap;
  text-overflow: ellipsis;
  /* #endif */
  /* #ifdef APP-NVUE */
  lines: 1;
  text-overflow: ellipsis;
  /* #endif */
}

// 暗主题配置
.uni-dark {
}
</style>
